Mounting; Extraordinary" Mounting Procedure - Cormach PUMA Manual De Uso Y Mantenimiento

UK

MOUNTING

i
nstruCtions for Choosing the tyre
To make full use of all a tyre s characteristics and have the
necessary guarantees of safety in use, a series of precautions
must be taken when choosing and itting tyres.
The tyre s dimensional, construction and service characteristics
are provided by the markings on its sidewall.
Once the appropriate tyre has been chosen from those approved
for use on the vehicle, the mounting procedure can begin.
ATTENTION
When mounting a new tyre, replace the inner tube in tube
type tyres and the valve in tubeless types.
ATTENTION
Always check that the tyre/rim combination is correct in
terms of compatibility (tubeless tyre on tubeless rim, tube
type tyre on tube type rim) and geometrical size (keying
diameter, cross-section width, Off-Set and shoulder proile)
before mounting.
Also check that rims are not deformed, that their ixing
holes have not become oval, that they are not encrusted
or rusty and that they do not have sharp burrs on the
valve holes.
Check that the tyre is in good condition with no signs of
damage.
m
ounting the tyre
1 • Preparing the tyre (ig.22)
- Grease both the tyre beads (A).
- Place the tyre on the rim (B)
2 • Positioning the tool head (ig.23)
- Operate control 1 to move the tool head into the working
position (A).
N.B.: The tool is already in the correct position for mounting
the tyre, unless the type of rim has been changed.
3 • Mounting the bottom bead (ig.24)
- Place the bottom bead of the tyre underneath the tool (A)
and at the same time apply a little pressure to the tyre by
hand while starting to rotate the wheel (pedal 1) for easier
bead insertion.
- Rotate until tyre mounting is complete.
4 • Positioning the top bead (ig.25)
- Position the top bead of the tyre as clearly shown in ig. 25.
Take care that the tyre does not slip underneath
the tool.
5 • Tilting the bead breaker unit (ig.26)
- Press the button 1 and move the bead breaker unit into the
top working position.
6 • Return the bead breaker unit to the working position (ig.27)
7 • Positioning the bead breaker disc (ig.28)
- Lower the bead breaker disc (control 1) (A) until it is level
with the well of the rim and make enough room for the clamp
to be inserted.
8 • Mounting the top bead (ig.29)
- Fit the clamp 1 in the space created by the bead breaker
disc (A).
- Start rotation (pedal 2) to mount the bead until the clamp is
close to the tool (B-C).
- For large (over 19") or particularly tough wheels a second
clamp may be useful.
- Apply more pressure to the tyre (control 3) and move the
tool head to the rest position (control 4) (D).
- Start rotation again (pedal 2) until the clamp 1 is close to
the bead breaker disc and remove the clamp 1 (E).
- When mounting is complete, raise the bead breaker disc
(control 5).
9 • Move the bead breaker unit to the rest position (ig.30)
10• Tyre inlation
- For inlation, see "INFLATION" section
11 • Releasing the wheel from the turntable (ig.32)
- Undo the device by turning the handles 1 anti-clockwise (A).
- Press the retainers 2 and move the centring cone away from
the rim by hand (B).
- Turn the clamping device anti-clockwise to release it from
the turntable (C).
- Remove the device from the rim (D).
12 • Unloading the tyre (ig.33)
- Lower the wheel lift (pedal 1) and position the wheel on it
by hand (A).
- Lower the lift (pedal 2) (B).
- Remove the wheel from the lift (C).

"EXTRAORDINARY" MOUNTING PROCEDURE

- One variation of the mounting procedure explained above
may be adopted in case of rims with very small or non-
existent drop centre (ig.8a). In these exceptional cases, the
mounting procedure can be facilitated by using a variant of
the normal procedure.
- The irst bead is mounted in the usual way. To mount the
second bead, position the mobile tool as during the demount-
ing search stage (ig.18d).
- This reduces the stresses, leaving more space for the tyre.
The following operations illustrated from ig.29 onward remain
unchanged.
Approved M/D procedure for UHP and RUN FLAT
tyres
For the detailed M/D procedure for UHP and RUN FLAT
tyres, please refer to the instruction manual wrote by WDK
(German Association of the Tyre Industry)
NOT APPROVED PROCEDURE FOR DEMOUNTING/
MOUNTING RUN FLAT TYRES WITH VALVE
SENSOR
N.B.: if the sensor is on the tyre valve.
tyre demounting
• Remove the valve plunger and allow all the air to discharge
from the tyre.
• N.B.: If necessary, remove the valve ixing nut and allow
the sensor to drop into the tyre.
• Place the sensor at 3 o clock.
• Lower the bead breaker disc and start the rotational bead
breaking stage.
• Lubricating the bead, continue rotational upper bead break-
ing until the sensor is at 12 o clock and not beyond.
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